Green Quartz is also called, Prasiolite or Vermarine and is a green variety of Quartz. Most natural Green Quartz has been mined in Brazil but that mine is almost mined out. It has been found in smaller amounts in Poland and parts of Canada. Green Quartz is often in jewelry settings as a substitute for other more expensive gemstones. Because of its desirability and rarity in nature, this stone is often created by heat treating amethyst. It is not acceptable to refer to Green Quartz as Green Amethyst. The stone’s proper name, Prasiolite comes from Greek prison, lithos, meaning “leek stone” given the distinct coloration. Natural Prasiolite colors occur as a light translucent green, remescent of scallions, while darker varieties are often the result of artificial treatment.